Portrait of the Artist Wilhelm Busch 1832-1908 - Wilhelm Busch
Portrait of John Grant of Kilgraston (d.1793), full-length, seated, in black gown with white bands, a letter in his left hand - Lemuel-Francis Abbott
Portrait Of A Laughing Man - North-Italian School
Portrait Of A Bearded Man, Half-Length, Wearing A Blue Waistcoat And Holding A Book In His Right Hand - (after) Jacopo D'Antonio Negretti (see Palma Giovane)
Portrait of a gentleman, three-quarter-length, in a brown coat and blue mantle, his left hand resting on a book - (after) Kauffmann, Angelica
Portrait of a girl - Jonathan Richardson
Portrait of the wife of the artist - Fulchran Jean Harriet
Portrait of a man - Judith Leyster
Portrait of a lady, bust-length, in a pink dress and headdress - Daniel Gardner
The Russian Ambassador Piotr Ivanowitz Potemkin, 1681 - Juan Carreno De Miranda
Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the 
